2 * Copyright 2003-2005 Devicescape Software, Inc.
3 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
4 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 #include <linux/debugfs.h>
12 #include <linux/ieee80211.h>
13 #include "ieee80211_i.h"
15 #include "debugfs_sta.h"
20 #define STA_READ(name, buflen, field, format_string) \
21 static ssize_t sta_ ##name## _read(struct file *file, \
22 char __user *userbuf, \
23 size_t count, loff_t *ppos) \
26 struct sta_info *sta = file->private_data; \
28 res = scnprintf(buf, buflen, format_string, sta->field); \
29 return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
31 #define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n")
32 #define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n")
33 #define STA_READ_LU(name, field) STA_READ(name, 20, field, "%lu\n")
34 #define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n")
36 #define STA_READ_RATE(name, field) \
37 static ssize_t sta_##name##_read(struct file *file, \
38 char __user *userbuf, \
39 size_t count, loff_t *ppos) \
41 struct sta_info *sta = file->private_data; \
42 struct ieee80211_local *local = wdev_priv(sta->dev->ieee80211_ptr);\
43 struct ieee80211_hw_mode *mode = local->oper_hw_mode; \
45 int res = scnprintf(buf, sizeof(buf), "%d\n", \
47 sta->field < mode->num_rates) ? \
48 mode->rates[sta->field].rate : -1); \
49 return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
52 #define STA_OPS(name) \
53 static const struct file_operations sta_ ##name## _ops = { \
54 .read = sta_##name##_read, \
55 .open = mac80211_open_file_generic, \
58 #define STA_FILE(name, field, format) \
59 STA_READ_##format(name, field) \
62 STA_FILE(aid
, aid
, D
);
63 STA_FILE(dev
, dev
->name
, S
);
64 STA_FILE(vlan_id
, vlan_id
, D
);
65 STA_FILE(rx_packets
, rx_packets
, LU
);
66 STA_FILE(tx_packets
, tx_packets
, LU
);
67 STA_FILE(rx_bytes
, rx_bytes
, LU
);
68 STA_FILE(tx_bytes
, tx_bytes
, LU
);
69 STA_FILE(rx_duplicates
, num_duplicates
, LU
);
70 STA_FILE(rx_fragments
, rx_fragments
, LU
);
71 STA_FILE(rx_dropped
, rx_dropped
, LU
);
72 STA_FILE(tx_fragments
, tx_fragments
, LU
);
73 STA_FILE(tx_filtered
, tx_filtered_count
, LU
);
74 STA_FILE(txrate
, txrate
, RATE
);
75 STA_FILE(last_txrate
, last_txrate
, RATE
);
76 STA_FILE(tx_retry_failed
, tx_retry_failed
, LU
);
77 STA_FILE(tx_retry_count
, tx_retry_count
, LU
);
78 STA_FILE(last_rssi
, last_rssi
, D
);
79 STA_FILE(last_signal
, last_signal
, D
);
80 STA_FILE(last_noise
, last_noise
, D
);
81 STA_FILE(channel_use
, channel_use
, D
);
82 STA_FILE(wep_weak_iv_count
, wep_weak_iv_count
, D
);
84 static ssize_t
sta_flags_read(struct file
*file
, char __user
*userbuf
,
85 size_t count
, loff_t
*ppos
)
88 struct sta_info
*sta
= file
->private_data
;
89 int res
= scnprintf(buf
, sizeof(buf
), "%s%s%s%s%s%s%s%s%s",
90 sta
->flags
& WLAN_STA_AUTH
? "AUTH\n" : "",
91 sta
->flags
& WLAN_STA_ASSOC
? "ASSOC\n" : "",
92 sta
->flags
& WLAN_STA_PS
? "PS\n" : "",
93 sta
->flags
& WLAN_STA_TIM
? "TIM\n" : "",
94 sta
->flags
& WLAN_STA_PERM
? "PERM\n" : "",
95 sta
->flags
& WLAN_STA_AUTHORIZED
? "AUTHORIZED\n" : "",
96 sta
->flags
& WLAN_STA_SHORT_PREAMBLE
? "SHORT PREAMBLE\n" : "",
97 sta
->flags
& WLAN_STA_WME
? "WME\n" : "",
98 sta
->flags
& WLAN_STA_WDS
? "WDS\n" : "");
99 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, res
);
103 static ssize_t
sta_num_ps_buf_frames_read(struct file
*file
,
104 char __user
*userbuf
,
105 size_t count
, loff_t
*ppos
)
108 struct sta_info
*sta
= file
->private_data
;
109 int res
= scnprintf(buf
, sizeof(buf
), "%u\n",
110 skb_queue_len(&sta
->ps_tx_buf
));
111 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, res
);
113 STA_OPS(num_ps_buf_frames
);
115 static ssize_t
sta_last_ack_rssi_read(struct file
*file
, char __user
*userbuf
,
116 size_t count
, loff_t
*ppos
)
119 struct sta_info
*sta
= file
->private_data
;
120 int res
= scnprintf(buf
, sizeof(buf
), "%d %d %d\n",
121 sta
->last_ack_rssi
[0],
122 sta
->last_ack_rssi
[1],
123 sta
->last_ack_rssi
[2]);
124 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, res
);
126 STA_OPS(last_ack_rssi
);
128 static ssize_t
sta_last_ack_ms_read(struct file
*file
, char __user
*userbuf
,
129 size_t count
, loff_t
*ppos
)
132 struct sta_info
*sta
= file
->private_data
;
133 int res
= scnprintf(buf
, sizeof(buf
), "%d\n",
135 jiffies_to_msecs(jiffies
- sta
->last_ack
) : -1);
136 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, res
);
138 STA_OPS(last_ack_ms
);
140 static ssize_t
sta_inactive_ms_read(struct file
*file
, char __user
*userbuf
,
141 size_t count
, loff_t
*ppos
)
144 struct sta_info
*sta
= file
->private_data
;
145 int res
= scnprintf(buf
, sizeof(buf
), "%d\n",
146 jiffies_to_msecs(jiffies
- sta
->last_rx
));
147 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, res
);
149 STA_OPS(inactive_ms
);
151 static ssize_t
sta_last_seq_ctrl_read(struct file
*file
, char __user
*userbuf
,
152 size_t count
, loff_t
*ppos
)
154 char buf
[15*NUM_RX_DATA_QUEUES
], *p
= buf
;
156 struct sta_info
*sta
= file
->private_data
;
157 for (i
= 0; i
< NUM_RX_DATA_QUEUES
; i
++)
158 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "%x ",
159 le16_to_cpu(sta
->last_seq_ctrl
[i
]));
160 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "\n");
161 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, p
- buf
);
163 STA_OPS(last_seq_ctrl
);
165 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
166 static ssize_t
sta_wme_rx_queue_read(struct file
*file
, char __user
*userbuf
,
167 size_t count
, loff_t
*ppos
)
169 char buf
[15*NUM_RX_DATA_QUEUES
], *p
= buf
;
171 struct sta_info
*sta
= file
->private_data
;
172 for (i
= 0; i
< NUM_RX_DATA_QUEUES
; i
++)
173 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "%u ",
174 sta
->wme_rx_queue
[i
]);
175 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "\n");
176 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, p
- buf
);
178 STA_OPS(wme_rx_queue
);
180 static ssize_t
sta_wme_tx_queue_read(struct file
*file
, char __user
*userbuf
,
181 size_t count
, loff_t
*ppos
)
183 char buf
[15*NUM_TX_DATA_QUEUES
], *p
= buf
;
185 struct sta_info
*sta
= file
->private_data
;
186 for (i
= 0; i
< NUM_TX_DATA_QUEUES
; i
++)
187 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "%u ",
188 sta
->wme_tx_queue
[i
]);
189 p
+= scnprintf(p
, sizeof(buf
)+buf
-p
, "\n");
190 return simple_read_from_buffer(userbuf
, count
, ppos
, buf
, p
- buf
);
192 STA_OPS(wme_tx_queue
);
195 #define DEBUGFS_ADD(name) \
196 sta->debugfs.name = debugfs_create_file(#name, 0444, \
197 sta->debugfs.dir, sta, &sta_ ##name## _ops);
199 #define DEBUGFS_DEL(name) \
200 debugfs_remove(sta->debugfs.name);\
201 sta->debugfs.name = NULL;
204 void ieee80211_sta_debugfs_add(struct sta_info
*sta
)
206 struct dentry
*stations_dir
= sta
->local
->debugfs
.stations
;
207 DECLARE_MAC_BUF(mac
);
212 print_mac(mac
, sta
->addr
);
214 sta
->debugfs
.dir
= debugfs_create_dir(mac
, stations_dir
);
215 if (!sta
->debugfs
.dir
)
219 DEBUGFS_ADD(num_ps_buf_frames
);
220 DEBUGFS_ADD(last_ack_rssi
);
221 DEBUGFS_ADD(last_ack_ms
);
222 DEBUGFS_ADD(inactive_ms
);
223 DEBUGFS_ADD(last_seq_ctrl
);
224 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
225 DEBUGFS_ADD(wme_rx_queue
);
226 DEBUGFS_ADD(wme_tx_queue
);
230 void ieee80211_sta_debugfs_remove(struct sta_info
*sta
)
233 DEBUGFS_DEL(num_ps_buf_frames
);
234 DEBUGFS_DEL(last_ack_rssi
);
235 DEBUGFS_DEL(last_ack_ms
);
236 DEBUGFS_DEL(inactive_ms
);
237 DEBUGFS_DEL(last_seq_ctrl
);
238 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
239 DEBUGFS_DEL(wme_rx_queue
);
240 DEBUGFS_DEL(wme_tx_queue
);
243 debugfs_remove(sta
->debugfs
.dir
);
244 sta
->debugfs
.dir
= NULL
;
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